CVE-2024-3772 | Regular expression denial of service in Pydantic < 2.4.0

Exp

Regular expression denial of service in Pydanic < 2.4.0, < 1.10.13 allows remote attackers to cause denial of service via a crafted email string.

Published: 2024-04-15 Last update: 2025-12-09 Assigner: 430a6cef-dc26-47e3-9fa8-52fb7f19644e Source: 430a6cef-dc26-47e3-9fa8-52fb7f19644e
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-3772 is rated Exploit Available (59/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.95%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2024-3772

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2024-3772

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.28% 0.95% +0.67%
2 2025-11-21 0.45% 0.28% -0.17%
3 2025-11-18 — 0.45% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-3772

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.9 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 3.6 430a6cef-dc26-47e3-9fa8-52fb7f19644e
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]

Weakness enumeration for CVE-2024-3772

GitHub Security Advisory for CVE-2024-3772

GHSA-mr82-8j83-vxmv · Severity: medium · Ecosystem: pip — Pydantic regular expression denial of service

OS Trackers for CVE-2024-3772

vendor priority summary link
debian not yet assigned CVE-2024-3772 not yet assigned priority: Debian including 1 source packages (pydantic), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 3, open 2. https://security-tracker.debian.org/tracker/CVE-2024-3772
redhat medium — https://access.redhat.com/security/cve/CVE-2024-3772
suse medium CVE-2024-3772 severity moderate: SUSE including 17 source package names (5.1.0.6.40:python311-pydantic-1.10.8-150400.9.10.1, libbd_btrfs2-2.28-slfo.1.1_2.1, …), 165 product×package rows across 23 product lines (Container suse/multi-linux-manager/5.1/x86_64/server, Image SL-Micro, … (23 product lines)): Fixed 165. https://www.suse.com/security/cve/CVE-2024-3772/
ubuntu medium CVE-2024-3772 medium priority: Ubuntu including 1 source packages (pydantic), 8 status rows across 8 suites (focal, jammy, mantic, noble, oracular, plucky, questing, upstream): not-affected 4, released 3, ignored 1. https://ubuntu.com/security/CVE-2024-3772

Affected software / configurations for CVE-2024-3772

Vendor Product Version Raw CPE
pydantic pydantic < 1.10.13 cpe:2.3:a:pydantic:pydantic:*:*:*:*:*:*:*:*
pydantic pydantic >= 2.0, < 2.4.0 cpe:2.3:a:pydantic:pydantic:*:*:*:*:*:*:*:*
fedoraproject fedora 38 cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*

References for CVE-2024-3772

cvelogic Threat Intelligence